HDVR-1200kV/200mA Ultra-HVDC Protection Resistor

Product Overview

Designed for extreme voltage applications, the HDVR-1200kV resistor provides essential protection for 1.2MV DC test systems with its precision 120kΩ current-limiting design and 200mA continuous rating, capable of handling 24kW continuous power.

Technical Specifications

Protection System Architecture

Dual-Resistor Network

• AC Side: 10kΩ charging transformer protection

• DC Side: 120kΩ main limiting resistor

• Motorized position adjustment with digital locking

Failure Protection Mechanism

Unprotected System Risks

1. Fault currents exceed 100A during shorts

2. Rectifier stacks destroyed in &lt50μs

3. Transformer insulation carbonization

4. System-wide catastrophic failure

HDVR Protection Benefits

1. Peak current limited to <250mA

2. Voltage transients capped at 105%

3. Fault energy localized to single module

4. 90% reduction in repair costs

Design Features

• Voltage Grading: 11-stage active grading system

• Thermal Management: Liquid dielectric immersion cooling

• Mechanical: 4.2m quartz-epoxy core with quad corona shields

• Monitoring: Fiber-optic temperature/current sensors

Protection Performance

Installation Requirements

1. Minimum 8m clearance from grounded surfaces

2. Precision vertical alignment (<1° deviation)

3. Quarterly resistance verification (±2% tolerance)

4. Pre-commissioning test at 1440kV

5. Daily infrared and UV corona scans

Compliance Standards

• IEC 62271-1 (1200kV+ equipment standards)

• IEEE Std 1845 (Extreme HVDC systems)

• EN 60060-1 (High-voltage test techniques)

• NASA-STD-6001 (Space-grade materials)

Typical Applications

• Next-gen HVDC transmission research

• Fusion reactor power systems

• Particle accelerator energy storage

• National high-voltage test facilities

• Supergrid protection systems

The HDVR-1200kV/200mA represents the pinnacle of ultra-high voltage protection technology, with its 120kΩ precision resistance and 40μs response time ensuring safety in 1.2MV systems testing capacitive loads up to 30nF. The aerospace-grade construction meets the most demanding research and industrial applications.